45.0 degrees by 0.047 in deep chamfer on edge of both sides
A transparent item of a predetermined size that permits unobstructed and undistorted view of a desired area. It may include a frame, have reference markings, grid lines and may be heat strengthened and/or tinted. It is generally used where safety, security, and/or the restriction of foreign matter are required, such as the visual examination of the inside of pressurized tanks, liquid sights, controlled liquid flow, and inspection of equipment enclosed in a housing. See window (as modified); scale, cathode ray tube; scale, plotting; window, metal; window, wood; and window panel, aircraft.
Classification: Pressed or molded glass articles, wired or not, for building or construction;leaded glass windows etc; formed multicellular or foam glass
NSN 6240-00-248-6517
NSN 5910-00-500-8627
NSN 6645-01-605-1485
NSN 5835-01-035-2976
NSN 6150-01-590-9226
NSN 6220-01-619-0567
NSN 6685-01-406-4482
NSN 5960-01-528-1147
NSN 5960-01-541-9884
NSN 6320-01-224-0063
NSN 4140-00-541-9077
NSN 2925-01-277-5882